Answer:
c) -7/2
Step-by-step explanation:
14/-4= -3.5
Answer:
With 95% confidence when n equals 44, the population mean is between a lower limit of 33.96 and an upper limit of 40.04
Step-by-step explanation:
Confidence Interval = mean + or - Error margin (E)
mean = 37
sd = 10
n = 44
degree of freedom = n - 1 = 44 - 1 = 43
t-value corresponding to 43 degrees of freedom and 95% confidence level is 2.0165
E = t × sd/√n = 2.0165×10/√44 = 3.04
Lower limit = mean - E = 37 - 3.04 = 33.96
Upper limit = mean + E = 37 + 3.04 = 40.04
95% confidence interval is between 33.96 and 40.04
Answer:
64 and 81
Step-by-step explanation:
Answer: $95450
Step-by-step explanation:
We obviously want to look in the 3rd column.
Income that can be taxed is within interval for 33%, so (0.33)(315000) = $103950.
Subtract the tax credit, and we get $103950 - $8500 = $95450.
No it is not enough to buy them all Starbucks but the true answer is yes